I spent a while last night downloading relevant updates from the Microsoft site itself, and the next available update (according to my Windows Update) is SP1. I ran SP1 and it got much further than it had before, but errored at around 50% due to an internal error. I'm going to try it again now and see what the error message gives me. (In regards to the problem I had before, I had an update which wouldn't install for a YEAR... and a lot of 6 month old updates which were pre-requisites for SP1. I'm determined to get this sorted out. >:o)
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